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Abstract:
In order to improve the architecture luminous environment and indoor air quality, solar light-vent pipe systems are researched and developed. Two different self-made solar light-vent pipe systems, 'Direct' and 'T' type, are tested with the tracer gas concentration decay method. The ventilation performance of the two devices is compared with different inlet opening under the same temperature differential conditions. Experimental results show that the type of solar light-vent pipe systems and the opening of air inlet have significant impact on the ventilation effect. The decay time of 'T' type is longer than the 'Direct' type. The opening of the inlet is bigger, the speed of decay time of the tracer gas is faster. The illuminance is more than 100lux under 20 cm of the diffuser of solar light pipes, which can meet the need of daylighting. The tracer gas concentration decay method is one of the effective means to study solar light-vent pipe systems and the 'T' type solar light-vent pipe has better natural ventilation effect.
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Journal of Nanjing University of Science and Technology
ISSN: 1005-9830
Year: 2011
Issue: SUPPL. 1
Volume: 35
Page: 148-153
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ESI Highly Cited Papers on the List: 0 Unfold All
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30 Days PV: 0